摘要
增量ETL过程的并行化是提高ODS数据实时性的有效途径。结合通信顺序进程理论研究了增量ETL过程模型,形式化分析了增量ETL过程事件在并行环境下执行状态的变换过程,提出了增量ETL过程并行调度算法,解决了增量ETL过程在并行环境下调度策略的问题。应用及实践表明,模型及算法具有源系统负载小、数据的实时性高等特点。
Parallel incremental ETL process is to improve the ODS data real-time effective way.Combine with communicating sequential processes theory of the incremental ETL process models,formal analysis of the incremental ETL process events in parallel execution environment,and the state of transformation process,this paper proposed the incremental ETL process proposed parallel scheduling algorithm to solve the incremental ETL process a parallel scheduling policy environment in question.Application and practice show that the model and algorithm with the source system load is small,and high real-time data
出处
《计算机应用研究》
CSCD
北大核心
2012年第9期3330-3333,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(61003247)
